As evidenced by these videos themselves a locked, steady, smooth 30fps can be fantastic. The game looks so smooth in motion sometimes it has the fluidity of a 60fps look despite being 30fps.
That feel of 60fps.jk
As I said before, while I think it stinks that devs sacrifice gameplay for graphics, I completely understand given gaming audiences.
But as a long time PC gamer, saying that 30fps is unplayable, even on a racer, is extremely silly. Ideal? Of course not, but you get what you pay for.